Fearing and resenting the success of conservative talk radio, and frustrated by their own inability to win market share with liberal-oriented programming, liberals in the media are pushing for a return to what they call the fairness doctrine, under which government would impose “equal time” requirements on stations, thereby forcing them to carry programming whose ideological content differs from what listeners have freely chosen.
A final word about media bias: it is inevitable. It is also subjective, meaning that news reporting is too conservative for liberals and too liberal for conservatives. You just need to know what the biases of your news sources are.